Step 1: Start the Process
On your Warmbox dashboard, click the Add New Inbox button in the top-right corner.
Step 2: Select provider
In the pop-up, select Outlook and click Next
Step 3: Authentication
Click the Sign in with Microsoft button.
Step 4: Authorize
Follow the Microsoft prompts to grant permissions to the platform.
Step 5: Configure
Once the connection is verified, click Next to set up your inbox warm-up settings.
Having Trouble Connecting? (Admin Permissions)
In some corporate or enterprise environments, your IT Administrator may have restricted third-party app connections. If you see an "Approval Required" or "Access Denied" message, follow these steps:
1. The Admin Approval Workaround
The simplest way to bypass this is to have a Global Admin authorize the app for the organization. They do not need to stay connected; they just need to "open the door."
Ask your IT Admin to briefly initiate a connection using their admin credentials.
During their login, they can check the box to "Consent on behalf of your organization."
Once permissions are approved, the admin can simply cancel the setup or delete the admin inbox from the dashboard. The "door" is now open for the rest of the team.
2. Connect Your Outreach Inbox
Once the Admin has approved the app permissions once, you can go back and repeat the standard "Sign in with Microsoft" process using your standard outreach/warm-up inbox. It should now connect seamlessly without the error message.
💡 If your IT team is hesitant, let them know that this uses standard OAuth 2.0 permissions, which is the safest way to integrate third-party tools with Microsoft 365.